Let’s explore some of the most common mistakes professionals make during the soldering process. Learning how to solder copper pipe can seem daunting at first, but by applying proper techniques and avoiding typical errors, it becomes much easier to execute a leak-free pipe joint. The melting point of solder is lower than copper, and when heated, solder melts and fuses the piping together once completely cooled. Solders that are safe to use on potable water systems contain a percentage of tin and a combination of other non-toxic metals. Today, due to the Safe Water Drinking Act and lead-free restrictions, solders that contain more than 0.2% lead are not permitted for use in potable water systems. Solder is a metal or metallic alloy that historically consisted of lead (known as lead-based solder) and tin in various proportions. The process of joining copper pipe and fitting is called soldering (or sweating), which is a critical step in the copper installation process. The naturally occurring metal element is also preferred for various application types due to its high conductivity of electricity and heat, corrosion/fire resistance and durability. Copper is the metal of choice for potable water systems for a variety of reasons – the most important being that it is non-toxic and safe for drinking. ![]() There’s a strong chance you’ve spotted copper pipe somewhere in your home, like around a hot water tank or under a sink. ![]() Avoid these five common mistakes for a leak-free joint.
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